Variable Frame Structure Synchronization for Radio Networks
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Solution Overview
Problem
Existing data transmission systems in radio communications face inefficiencies due to fixed synchronisation portions that do not adapt to varying data transfer rates, leading to suboptimal allocation of time for synchronisation and payload data, especially in systems with frequent unsynchronisation and varying data loads.
Innovation Solution
A method and apparatus that dynamically adjust the length of the synchronisation portion in a frame structure based on data loading parameters, such as payload data transfer requirements, allowing for flexible allocation of time within the frame to optimize synchronisation and data transfer efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large synchronisation portion is used to ensure all outstations can synchronise, then synchronisation reliability is improved, but payload data transfer rate deteriorates
Solution Approach 1:
The frame structure dynamically adjusts the synchronisation portion length based on the number of unsynchronised outstations. When many outstations need synchronisation, a larger synchronisation portion is allocated. When few outstations need synchronisation, the synchronisation portion is reduced to maximise payload data transfer. This dynamic adaptation resolves the contradiction by making the synchronisation portion size variable rather than fixed.
2Quantity of substance
If a large downlink data portion is allocated to transfer data volume, then data transfer capacity is improved, but synchronisation capability deteriorates
Solution Approach 1:
The frame structure dynamically balances the downlink data portion and synchronisation portion based on current network conditions. When data transfer demand is high and few outstations need synchronisation, the downlink data portion is expanded. When many outstations need synchronisation, the synchronisation portion is expanded at the expense of downlink data capacity. This dynamic resource allocation resolves the contradiction between data transfer capacity and synchronisation capability.
3Device complexity
If a fixed frame structure is used to simplify system design, then device complexity is reduced, but adaptability to varying data loads deteriorates
Solution Approach 1:
The frame structure uses dynamic parameter adjustment within a standardized framework. The overall frame structure remains consistent, but the lengths of synchronisation portion and downlink data portion are dynamically adjusted based on data load conditions. This approach maintains relatively simple device architecture while achieving high adaptability to varying data transfer requirements.
Solution Approach 2:
The system changes key parameters (synchronisation portion length, downlink data portion length) based on network conditions and data load requirements. By varying these parameters dynamically, the system adapts to different operational scenarios without requiring fundamentally different frame structures, thus maintaining simplicity while achieving versatility.
Data Source
AI summary
A network includes a first transceiving station and a further transceiving station. In one arrangement the data is transmitted from the first transceiving station to the second transceiving station according to a frame structure having a payload portion for payload data and a synchronization portion for synchronization data. The frame structure is selected from candidate frame structures having differing durations of the synchronization portion, according to a data loading factor which depends on the amount of data that is required to be transmitted. The payload capacity may be optimised by reducing the duration of the synchronization portion when a large amount of data is required to be transmitted.